A3940KLPTR

更新时间： 2024-01-03 18:31:09

品牌	Logo	应用领域
急速微 - ALLEGRO		控制器
页数	文件大小	规格书
12页	591K
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A3940KLPTR 数据手册

3940

FULL-BRIDGE POWER MOSFET CONTROLLER

— For Automotive Applications

The A3940KLP and A3940KLW are designed specifically for

automotive applications that require high-power motors. Each provides

four high-current gate drive outputs capable of driving a wide range of

n-channel power MOSFETs in a full-bridge configuration.

Bootstrap capacitors are utilized to provide the above-battery

supply voltage required for n-channel FETs. An internal charge pump

for the high side allows for dc (100% duty cycle) operation of the

bridge.

Protection features include supply under/overvoltage, thermal

shutdown, and motor lead short-to-battery and short-to-ground fault

notification, and a programmable dead-time adjustment for cross-

conduction prevention. The overvoltage trip point is user adjustable.

A3940KLP

(TSSOP with exposed

thermal pad)

A3940KLW

(SOIC)

The A3940 is supplied in a choice of two power packages, a 28-pin

TSSOP with an exposed thermal pad (package type LP), and a 28-pin

wide-body SOIC (package type LW). Both package types are available

in lead (Pb) free versions, with 100 % matte-tin leadframe plating

(suffix –T).

Approx. 2X actual size.

FEATURES

ABSOLUTE MAXIMUM RATINGS

Drives wide range of n-channel MOSFETs

Charge pump to boost gate drive at low-battery-input conditions

Bootstrapped gate drive with charge pump for 100% duty cycle

Synchronous rectification

Load Supply Voltage Range, VBB,

VDRAIN, CP1 .......... -0.6 V to +40 V

Output Voltage Ranges,

LSS.............................. -2 V to +6.5 V

GHA/GHB, V_GHX........ -2 V to +55 V

SA/SB, V_SX.................. -2 V to +45 V

GLA/GLB, V_GLX.......... -2 V to +16 V

CA/CB, V_CX.............. -0.6 V to +55 V

CP2,VCP, VIN .......... -0.6 V to +52 V

Logic Input/Output Voltage Range

Fault diagnostic output

Adjustable dead-time cross-conduction protection

Motor lead short-to-battery and short-to-ground protection

Undervoltage/overvoltage protection

-40°C to +150°C, T_Joperation

Thermal shutdown

V_IN, V_OUT................... -0.3 V to +6.5 V

Operating Temperature Range,

T_A........................... -40°C to +135°C

Junction Temperature, T_J......... +150°C*

Storage Temperature Range,

Always order by complete part number

Part Number

A3940KLP-T

A3940KLP

Pb-free

Package

T_S........................... -55°C to +150°C

Yes

–

28-pin TSSOP

28-pin SOICW

* Fault conditions that produce excessive

junction temperature will activate device

thermal shutdown circuitry. These conditions

A3940KLW-T

A3940KLW

Yes

–

can be tolerated, but should be avoided.

12 3 4 5 6 7...12

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与A3940KLPTR相关器件

型号	品牌	描述	获取价格	数据表
A3940KLPTR-T	ALLEGRO	Full Bridge Based MOSFET Driver, 0.8A, PDSO28, TSSOP-28	获取价格
A3940KLW	ALLEGRO	FULL-BRIDGE POWER MOSFET CONTROLLER	获取价格
A3940KLW-T	ALLEGRO	FULL-BRIDGE POWER MOSFET CONTROLLER	获取价格
A3940KLWTR	ALLEGRO	Full Bridge Based MOSFET Driver, 0.8A, PDSO28, SOIC-28	获取价格
A3940KLWTR-T	ALLEGRO	Full Bridge Based MOSFET Driver, 0.8A, PDSO28, LEAD FREE, SOIC-28	获取价格
A3940LP	ALLEGRO	Half Bridge Based MOSFET Driver, 0.8A, PDSO28, TSSOP-28	获取价格